JPH0811026A - Tube cutting and fitting device - Google Patents

Abstract

PURPOSE:To smoothly and surely fit a tube cut to the prescribed dimension to a core by providing a core guide means to support and guide the core to be transferred from the opposite direction to the feeding direction of the tube on the feeding direction side of a tube detecting means. CONSTITUTION:A tube T is cut by closing a pair of upper and lower cutting blades 5a, 5b of a cutting means to obtain the tube T of the prescribed dimension. Successively, a core C is manually or automatically inserted into a guide passage 10b of a cylindrical body 10a of a core guide means 10. The tip of the core C is guided to a guide passage 11e of shutter members 11a, 11b and inserted to the tip of the tube T. When the core C is detected by a core detecting means 9, a pair of shutter members 11a, 11b are opened, and the tube is fed in the direction of the arrow A by a tube feeding means 8, allowing the core C to be inserted into the tube T, and that means, the tube T is fitted to the core C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube cutting and mounting apparatus for inserting a core wire such as a coil end into a tube cut into a predetermined size and mounting the tube.

[0002]

2. Description of the Related Art Conventionally, as a tube cutting and mounting device of this type, a technique described in Japanese Patent Application Laid-Open No. 4-152030 is known. This device has a cylindrical guide body of an outer tube and a cylindrical guide body of an inner body made of a tube or a rod-shaped body inserted into the outer tube, and their tip portions are opposed to each other so that their axes coincide. In addition, each guide body is formed into an openable / closable tubular body, and the tip end portion of the tubular guide body of the inner body serves as a stopper portion of the outer tube. A hydraulic cylinder is connected to each of the left and right tubular bodies of each of the tubular guide bodies, and when the inner body is inserted into the outer tube, the split tubular body of each tubular guide body is opened left and right. Thus, the outer tube in which the inner body is inserted is dropped.

[0003]

However, in the above-mentioned conventional tube cutting and mounting apparatus, the left and right cylindrical bodies of the pair of cylindrical guide bodies must be simultaneously controlled to be opened and closed by the hydraulic cylinders, and the structure is complicated. There is a point. Also, since the two-split cylinder of each tubular guide body is opened to the left and right, when inserting the core wire as the inner body into the outer tube, the core wire is inserted into a portion other than the center of the two-split cylinder body. Therefore, there is a problem that the core wire cannot be inserted into the tube.

The present invention has been made in view of the above problems of the prior art. The core wire can be smoothly and surely mounted in a tube cut into a predetermined size, and the structure is simple. It is an object of the present invention to provide a tube cutting and mounting device that is easy to operate.

[0005]

In order to achieve the above object, the tube cutting and mounting apparatus according to claim 1 of the present invention is a long tube cutting and mounting apparatus for inserting a core wire into a tube cut into a predetermined size. Tube feeding means for feeding the tube in its longitudinal direction, cutting means for cutting the long tube fed by the tube feeding means, and provided on the feeding direction side of the cutting means, And a tube detecting means for detecting the long tube before cutting, a tube guide means provided between the tube detecting means and the cutting means and supporting and guiding the tube, and the feeding means from the cutting means. Tube delivery means provided on the feed direction side and delivering the tube,
Provided on the feeding direction side from the tube detection means,
And a core wire guide means for supporting and guiding the core wire transferred from the direction opposite to the feeding direction of the tube,
The core wire guiding means is provided on a cylindrical body having a penetrating guide passage that narrows in a moving direction of the core wire, and provided on the transfer direction side of the core wire with respect to the cylindrical body, and the core wire can be inserted when closed. And a shutter member which has an insertion hole through which the tube can be inserted when opened, and which can be opened and closed.

In the tube cutting and mounting device of the second aspect, the cutting means and the core wire guiding means are provided so as to be relatively movable in the feeding direction, and the tube guiding means is composed of a pair of cylindrical bodies. The double cylinder structure has a double cylinder structure that can be inserted into the other cylinder body by moving along the feeding direction.

In the tube cutting and mounting apparatus of the third aspect, a core wire detecting means for detecting the core wire is provided between the core wire guiding means and the cutting means, and the core wire detecting means detects the core wire. , Opening the shutter member and operating the tube delivery means.

[0008]

In the invention of claim 1 configured as described above, when the tube detecting means detects the tip of the tube fed by the tube feeding means,
From this time point, the tube is further fed by a predetermined length to position the tip of the tube immediately before the closed shutter member, and then the tube is cut by the cutting means. On the other hand, when the core wire is passed through the guide passage of the tubular body of the core wire guide means and the tip end thereof is inserted into the tube while being guided through the insertion hole of the shutter member, the shutter member is opened and the tube can be inserted. Forming an insertion hole. Then, the cut tube is sent to the core wire side by the tube sending means and passed through the insertion hole, whereby the core wire is inserted into the tube.

Further, in the invention of claim 2, the distance between the cutting means and the core wire guiding means is changed, and in accordance therewith, one tube body of the tube guide means is tubed to the other tube body. By moving along the feeding direction of
The cutting position can be changed to obtain a tube having an arbitrary cutting dimension, and even if the cutting dimension becomes long, the tube can be always held in a centered state.

Further, in the invention of claim 3, the core wire detecting means is used to control the operation timing of the shutter member and the tube sending means.

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of the tube cutting and mounting device of the present invention, FIG. 2 shows a state of the tip of the tube at the time of cutting the tube, an enlarged view of FIG. 1, and FIG. 3 inserting a core wire into the tube. 1 is an enlarged view of the shutter member shown in FIGS. 1 to 3, and FIG. 4 is a view showing a closed state of the shutter member.

As shown in FIG. 1, reference numeral 2 indicates a substrate (base) of the tube cutting and mounting apparatus, and a fixed frame 1 is fixed to a portion on the right side of the substrate 2 in the drawing, and the substrate 2
A movable frame 3 is provided in the upper left part of the figure so as to be opposed to the fixed frame 1 so as to be movable in the horizontal direction (the arrow A direction and the counter arrow A direction). The position adjustment of the movable frame 3 in the horizontal direction is performed by a driving unit (not shown) including, for example, a cylinder or a combination of a rack and a pinion.

The movable frame 3 is provided with a tube feeding means 4 for feeding a long tube T in the direction of arrow A, and a cutting means 5 for cutting the tube T fed by the tube feeding means 4. They are arranged side by side.

The tube feeding means 4 has a guide cylinder 4b having a funnel-shaped guide passage 4a, and this guide cylinder 4b.
Sets of feeding rollers 4c (four in total) for sandwiching the long tube T supported and guided in the guide passage 4a from above and below.
And a rotation drive unit (not shown) for rotating these feeding rollers 4c as indicated by the arrow. Further, each feeding roller 4c has an annular groove 4d formed on its outer peripheral surface, and the inner surface of each groove 4d (tube T
The surface that comes into contact with is subjected to uneven processing such as knurling.

The cutting means 5 comprises a pair of upper and lower cutting blades 5a, 5
The tube T is configured to be cut by moving b by a driving means (not shown) as shown by an arrow B and opening and closing each other.

A tube guide means 6 for supporting and guiding the tube T is arranged between the movable frame 3 and the fixed frame 1. The tube guide means 6 is fixed to the movable frame 3, and is fixed to the fixed frame 1 and a funnel-shaped first tubular body 6a that becomes thinner in the feeding direction of the tube T (direction of arrow A). First cylinder 6
It has a simple double cylinder structure composed of a second cylinder 6b slidably mounted on the outer periphery of a. The movable frame 3 moves in the horizontal direction, that is, both frames 1, 3
When the space is opened and closed, the insertion length of the first tubular body 6a into the second tubular body 6b can be changed accordingly.

At the right end of the second cylindrical body 6b in the figure, a tube detecting means 7 composed of infrared sensors arranged vertically is attached. The tube guide means 6 is provided between the tube detection means 7 and the cutting means 5.

In the fixed frame 1, a tube feeding means 8 for feeding the cut tube T in the direction of the arrow A adjacent to the second tubular body 6b, and a direction opposite to the feeding direction of the tube T (counter direction). The core wire detecting means 9 for detecting the core wire (coil terminal) C transferred from the direction of the arrow A and the core wire guiding means 10 for supporting and guiding the core wire C are indicated by the arrow A.
They are arranged in order in the direction.

The tube delivery means 8 is adjacent to both the delivery rollers 8a, a pair of delivery rollers 8a, a rotation drive unit (not shown) for rotating these delivery rollers 8a as shown by an arrow (see FIG. 3). And a guide pipe 8b that is provided as a guide. Both of the delivery rollers 8a have an annular groove 8c formed on the outer peripheral surface thereof, similarly to the above-described delivery rollers 4c, and the inner surface of the groove 8c (the surface contacting the tube T) has ruggedness such as knurling. It has been processed.

The core wire detecting means 9 is a metal core wire C transferred from the direction opposite to the arrow A to the outside of the guide pipe 8b.
The metal detection sensor for detecting is arranged.

The core wire guide means 10 has a tubular body 10a having a trumpet-shaped guide passage 10b which penetrates the core wire C and narrows in the direction of transfer of the core wire C (counter arrow A direction), and the tubular body 10a.
It is composed of a pair of upper and lower shutter members 11a and 11b which are provided closer to the transfer direction of the core wire C and which form an insertion hole (guide passage) 11e through which the core wire C is inserted and which can be opened and closed. The insertion hole (guide passage) 11e is increased in diameter in the direction of arrow A so that the core wire C can be easily guided.

As shown in FIGS. 1 and 4, the detailed structure of the pair of shutter members 11a and 11b is a divided semi-disc body obtained by vertically dividing a disc having a guide passage 11e in the center into two equal parts. It is provided so that it can approach and separate. That is, the pair of shutter members 11a and 11b each having the substantially semicircular cutouts 11c and 11d forming the guide passage 11e are moved toward and away from each other (opening and closing) by operating an electromagnetic solenoid (not shown). FIG. 4 shows a closed state, in which the guide passage 1
The size of 1e allows the core wire C to pass through but does not allow the tube T to pass through.

From this state, the electromagnetic solenoid (not shown) moves the pair of shutter members 11a and 11b in the directions of arrows D and E, that is, opens them, and the tube T passes through the guide passage 11e. You can set it to something you can. The structure of the shutter member is not limited to that shown in FIG. 4, but may be the one shown in FIG. 5 described later, for example.

Next, the operation of the tube cutting and mounting apparatus of this embodiment will be described. As shown in FIGS. 1 and 2,
First, the tube T sent to the position of the feeding roller 4c through the guide passage 4a of the guide tube body 4b, the upper and lower feeding rollers 4c are rotated as the feeding rollers 4c rotate.
It is sandwiched by and sent to the cutting means 5.

The tube T is further fed, and its tip passes between the upper and lower cutting blades 5a and 5b of the cutting means 5,
In addition, the tube guide means 6 is supported and guided along the inside of both the cylinders 6a and 6b and reaches the position of the tube detection means 7. From the time when the tip of the tube T is detected by the tube detecting means 7, the tube T is further fed by a predetermined length, so that the tip of the tube T is closed.
It stops at the position just before 1a and 11b (see the enlarged view of FIG. 2). Here, the tip of the tube T is the guide pipe 8
It is inserted by being guided by b.

In this case, the control for feeding the tube T by a predetermined length from the time when the tube detecting means 7 detects it uses, for example, a pulse motor as a rotary drive unit for rotating each of the feeding rollers 4c, and controls this pulse motor. This will be done smoothly.

Next, a pair of upper and lower cutting blades 5 of the cutting means 5
When a and 5b are closed, the tube T is cut and the tube T having a predetermined size is obtained. Subsequently, as shown in FIG. 3, the guide passage 10 of the cylindrical body 10a of the core wire guide means 10 is provided.
The core wire C is inserted into b manually or automatically. Then, the tip of the core wire C is guided by the guide passages 11e of the shutter members 11a and 11b to be securely inserted into the tip of the tube T. Here, when the core wire C is detected by the core wire detecting means 9, the pair of shutters is released. The members 11a and 11b are opened, and thereafter, the tube T is fed by the tube feeding means 8 in the direction of arrow A, so that the core wire C is inserted into the tube T, that is, the tube T is attached to the core wire C.

When the length of the tube T attached to the core wire C is changed, the movable frame 3 is fixed to the fixed frame 1.
By horizontally moving and adjusting the interval between the cutting means 5 and the core wire guiding means 10, the cutting dimension of the tube T can be easily changed. In this case, the fixed frame 1
With the horizontal movement of the movable frame 3 with respect to the tube T, even if the insertion length of the tube guide means 6 into the second cylinder b of the first cylinder 6a changes and the cutting dimension of the tube T becomes longer, the tube T Can always be held in a centered state.

In order to automatically perform the above-mentioned operation, the operation timing of each constituent means (unit) such as the tube feeding means 4 and the cutting means 5 is controlled by a control unit (not shown) based on a predetermined program. .

FIG. 5 is a view showing another example of the shutter member. A pair of shutter members 110a and 110b having substantially semicircular cutouts 110c and 110d, respectively, which form the guide passage 110e, are rotatably connected at one end thereof via a hinge 110h. At the other end of the pair of shutter members 110a and 110b,
Both ends of a coil spring 110g serving as a tension spring are locked, and the pair of shutter members 110a and 110b are normally biased by the coil spring 110g in the opposite arrow F direction and the opposite arrow G direction, respectively.

A pair of shutter members 110a and 110b
A taper pin insertion hole 110f is formed between the other ends of the pair of shutter members 110a and 110b by inserting a taper pin (not shown) into the taper pin insertion hole 110f. Coil spring 110
It can be opened by rotating in the directions of arrow F and arrow G against the spring force of g. Accordingly, the size of the guide passage 110e can be set so that the tube can pass therethrough.

[0032]

Since the present invention is configured as described above, it has the following effects. According to the first aspect of the present invention, when the tip of the tube fed by the tube feeding means is detected by the tube detecting means, the tube is further fed by a predetermined length from this point, whereby the tip of the tube is fed. After locating immediately before the shutter member, the tube is cut by the cutting means, while the core wire is passed through the guide passage of the cylindrical body of the core wire guiding means, and when the tip of the core wire is inserted into the tip of the tube, By opening the shutter member and sending the cut tube to the core wire side by the tube sending means and smoothly mounting the tube on the core wire, the tube cut to a predetermined size can be smoothly and surely mounted on the core wire. . In addition to the above effects, the invention according to claim 2 changes the distance between the cutting means and the core wire guide means, and accordingly, the tube guide means having a simple double cylinder structure is provided in the moving direction of the tube. By expanding and contracting along the axis, it is possible to easily obtain a tube with an arbitrary cutting size, and even if the cutting size becomes long, the tube can always be held in the centered state and the cost is increased. Absent. In the invention described in claim 3, the operations of the shutter member and the tube delivery means are easily automated.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a tube cutting and mounting device of the present invention.

FIG. 2 is an enlarged view of FIG. 1 showing a state of a tip of a tube when the tube is cut.

FIG. 3 is an enlarged view of FIG. 1 showing a state in which a core wire is inserted into a tube.

FIG. 4 is a view showing a closed state of the shutter member shown in FIGS. 1 to 3;

FIG. 5 is a diagram showing another example of a shutter member.

[Explanation of symbols]

T ... Tube, C ... Core wire (coil terminal), 1 ... Fixed frame, 2 ... Substrate, 3 ... Movable frame, 4 ... Tube feeding means, 4a ... Guide passage, 4b ... Guide cylinder, 4c ... Feed roller, 4d ... Grooves, 5 ... Cutting means, 5a, 5b ... Cutting blades, 6 ... Tube guide means, 6a ... First cylindrical body, 6b
... second cylinder, 7 ... tube detecting means, 8 ... tube sending means, 8a ... sending roller, 8b ... guide pipe, 8c
... Grooves, 9 ... Core wire detecting means, 10 ... Core wire guiding means, 10a
... cylindrical body, 10b ... guide passage, 11a, 11b ... shutter member, 11c, 11d ... notch, 11e ... guide passage (insertion hole), 110a, 110b ... shutter member, 1
10c, 110d ... Notches, 110e ... Guide passages (insertion holes), 110f ... Taper pin insertion holes, 110g ... Coil springs, 110h ... Hinge.

Claims (3)

[Claims] 1. A tube cutting and mounting apparatus for inserting a core wire into a tube cut into a predetermined size and mounting the tube, and a tube feeding means for feeding a long tube in a longitudinal direction thereof, and the tube feeding means. Cutting means for cutting the fed long tube, tube detecting means provided on the feeding direction side of the cutting means and for detecting the long tube before cutting, and the tube detecting means And a cutting means, and a tube guide means for supporting and guiding the tube, a tube feeding means provided on the feeding direction side of the cutting means and feeding the tube, and a tube detecting means. It is provided closer to the feeding direction side,
And a core wire guide means for supporting and guiding a core wire transferred from a direction opposite to the tube feeding direction, the core wire guiding means having a penetrating guide passage narrowing in a core wire transfer direction. A tubular body and an openable / closable shutter member provided on the side of the core wire in the transfer direction with respect to the tubular body and having an insertion hole through which the core wire can be inserted when closed and through which the tube can be inserted when opened. A tube cutting and mounting device characterized by being configured. 2. The cutting means and the core wire guide means are provided so as to be relatively movable in the feeding direction, and the tube guide means is composed of a pair of cylinders, one cylinder being the other cylinder. 2. The tube cutting and mounting device according to claim 1, which has a double-tube structure that can be inserted into the sheet by moving along the feeding direction. 3. A core wire detecting means for detecting the core wire is provided between the core wire guiding means and the cutting means. When the core wire detecting means detects the core wire, the shutter member is opened, The tube cutting and mounting apparatus according to claim 1 or 2, wherein the tube delivery means is operated.